Mikey, Don, Splinter, and Jay were fixing up the new lair. Jay was moving some stuff from the old lair around the new one. Donny was using his techo-mojo to make the lair even more livable, Splinter was sewing a practice dummy, and Mikey was busy putting a bunch of T.V.'s together. "What's wrong Mikey, can't decide what to watch?" Don asked. "I like the tube as much as you Mikey, but I think this is a little too much." Jay said to his step bro. "I need more power guys, the turtle cave has to be set to maximum entertainment potential." Mikey had everything plugged in, and he then turned it on. Some power went out in the city, but it got back up. "The turtle cave? That's lame." said Don. "What would you call our new diggs, the shellter." Mikey said. "I don't really think we need a name." said Jay. "Ahem" Splinter interrupted. "We shall call this place, home." Splinter said simply. "Hm, catchy." Mikey said. "Now, what is keeping Leonardo and Raphael?" Splinter asked. "They just went to get the last of out supplies from the old lair." Mikey answered. "I also have a clone with them for help." Jay added. "And the way the new sewer slider is performing, they should be back any minute." Don said as he was looking at a broken version of the robots that caused them to move.
Leo was carrying the last item, a glass container that was a little broken and had the letters "T.C.R.I." on it. "Our home, for 15 years, and this is all that's left." "When I find out who built those home-wrecking robo-roaches." Raph said as he punched a part of the wall. "Come on Raph, no need to trash this place more than it already is." Leo reminded. "As much as I want to find out who built those things, we should just go." said Jay's clone. The two turtles then went on the vehicle and they started to move. Jay just flew. "Now Don said that the Accelerator hasn't been tested yet, so take it nice and slow!!!!" Leo said as Raph hit the accelerator. Jay had to go faster. The S.S. was then moving all around the sewer walls, Jay followed it's movements. "I call this a successful field test wouldn't you Leo?" Raph asked. They all went to their new home. Don was still looking at the robot. "Even though it is inactive, that thing still makes me uneasy." Splinter protested. "This is state-of-the-art robotics Sensei, I've just gotta know what makes them tick." Donny replied. Raph Leo, and Jay's clone came back, then the two went back into one Jay. "Good news Mikey, your DVD collection survived." Leo said as tossed the box to Mikey. "Awesome, then let's throw in something light on story and heavy on gory, cause it's time for fun." Mikey said as he used the remote to turn to T.V. on. "I try to keep it low on violence." Jay said. There was a news report on. "In a press conference today at Stocktronics Incorporated, New York's leading New technologies firm." "Boring" Mikey said and yawned. "Wait, I wanna see this." Donny said. "Founder and CEO Dr. Baxter Stockman was on hands with his latest innovation." the reporter said. There was an African American with glasses talking. "A wise man once said , 'Build a better Mousetrap and the world will lead a path to your door' I say 'Let the path leading begin' for I, Dr. Baxter Stockman have designed the solution to the city's every-growing Rat problem. Ladies and Gentlemen, I give you The ultimate expression of rodent termination technology, The Stocktronics Mouser." He lifted a white sheet over something, and much to the Turtles and Jay's surprise, It was one of the same robots that destroyed their old home!
"I can't believe that the famous Baxter Stockman would try to pass off these killer robots as a good thing." Donny said in disbelief "Huh, and what's with those glasses?" Mikey said as he used a the mouser head the mutants had. "Do I look silly." He said mocking Stockman. Raph just got mad and thrusted one of his sais in one of the T.V.s. "I say we go over to Stocktronics and kick some serious shell." Raph said while spinning his sai. "Absolutely not!" Splinter said as he blocked him and hit him with his stick. "Your last venture to the surface was a complete disaster! You can ill-afford to be seen by more humans." "Hey, I'm a human and I grew up with you guys." Jay remarked. On the T.V. the interview was still going on. "My lab assistant, Miss April O'neil, will release several rats into the simulation chamber." There was a lady with red hair holding a box of rats. "April, proceed my dear." She went to maze and released the rats. "Now witness the sheer genius of my Mouser in action." Baxter said as he put the mouser in the maze. It found a rat and tore it up. "Whoa, I'd sure hate to be a rat in this town. Oh, sorry sensei." Mikey said suddenly remembering that his teacher and "dad" was a rat. "And the mouser's search and retrieval function are all ingeniously controlled by a remote mother computer." April and Baxter were in their office looking at the camera recorded news. "Oh this is so great. My friends, my family will finally see that I do work with THE Baxter Stockman." April said overjoyed. "You flatter me Ms. O'Neil, I like that." Baxter replied. "Hm, that's odd, I was running a diganostic check, half of the Mousers aren't even responding." April wondered aloud. "I'm sure it's nothing April. Just a minor glitch, I'll have someone look at it." "But what if the Mousers have been tampered with? We should check and.." "That won't be necessary April. Now if you'll excuse me, I must speak with an important funder." Baxter said as he went into a room. April became suspicious.
In the lair, Jay, the turtles, and Splinter were all training. Jay struck first. He kicked, then swung his sword. But Splinter blocked with his stick and hit Jay back. "Quicker on your moves Jay." Splinter said. Donny then attacked, but Splinter got to him. "Do not lean with your shoulders Donatello." Leo then jumped with his swords, but Splinter knocked him back. "Faster on your counterattack Leonardo." Mikey attacked too, but got floored. "Mind your foot-work Michelangelo." Raph attacked too, but Splinter put him to the wall. "You are distracted Raphael. You must learn to focus your attacks." "I'd like to focus my attacks on that Stockman guy." Raph retorted. "Why can't we go topside and teach him a lesson?" "Because I forbid it!" Splinter replied. "We will resume your training in the morning." Splinter said as he went into his room. "Hm, we will resume your training in the morning." Mikey mocked. "I heard that." Splinter replied. "Busted" Donny finished. "I just wanna break stockman's head!" Raph yelled. "Relax Raph," said Mikey "we don't need no stinkin surface world. We've got more channels than cable T.V., cool video games and DVD's" "Or you can help me with these robot parts." "If I get one working, we can trace it back to it's source and find out what Stockman is really up to." said Donny. "I'm just going to play some cards." Jay said reaching for his Yu-Gi-Oh card collection. "I'm gonna turn in for the night." said Raph. "Since when does Raph turn in so early?" Leo asked out loud. "Since he's trying to hide something." Jay said in his head.
Meanwhile at Stocktronics, Baxter Stockman was talking to a mysterious person on a communicator. "The mousers will be ready when I say so, the first test was" Baxter started. "A complete failure, I do not tolerate failure!" said the person on the monitor. "Which is why you'd make a lousy scientist" Baxter replied. "The test was supposed to expose any possible flaws. As a result, I've upgraded the Mousers so that they'll do better, and the plan will go as you said." "They had better Stockman, for your sake." Unknowest to Baxter, April was listening to every word he and his client were saying.
Back at the Lair, Mikey was napping, Don was working on the Mouser, and Jay was playing himself, that is, he cloned himself, so he could have some fun with his cards. A shadowy figure was making its way out of the lair, it was Raph. "Out for a late-night stroll?" Leo said standing in front of him. "Get out of my way Leo." Raph replied. "Splinter said we stay put." Leo remarked "Look, I'll go through you if I have to." Raph said getting ready to battle. "I'd like to see you try hothead." replied Leo getting ready. "Careful what you wish for Splinter Junior." Raph and Leo began fighting. "Going by yourself is suicide Raph." A voice came. Jay then became visible. "Will you stay out of this and decide how many clones you make.?" Raph replied. "Raph, we're brothers, and as a sibling, I must say that going to Stocktronics without us and a good plan is virtually suicide." Jay replied "You're a human, and your lucky Splinter took you in that day. We're stepbrothers." Raph remarked. "I know that, but I grew up with you guys, and to me, you're all family." Jay said. "Though I don't know what you guys would think of me if I told you my whole story." Jay thought to himself. A mouser was then leaving the lair. "Hey guys, I got one working." Donny said as he, Mikey, and Jay's clones went after the robot. "Come on, he's faster than he looks." Mikey said. The clones went back into Jay. "Well fearless leader, are you going to let them go?" Raph asked. "Master Splinter is so going to kill us." "Well, are you coming or what?" Leo asked. "If you insist" Raph said as he left follwed Don and Mikey. "I hope we can get this over with soon." Jay said.
At Stocktronics, April was working. "Goodnight April," said Baxter "try not to work too late. You know how I hate to pay overtime." "Goodnight Stockman." April replied. When Stockman left, April went into his office and started to look at his stuff on his computer. "Let's see what sort of 'plan' your cooking up with these mousers Dr. Stockman." April said. She then saw a symbol. "What's that thing for?" She clicked on it, and there was an elevator.
In the Sewers, the five bros. were following the Mouser. They were in a big place where a lot of water was pouring in. "Careful guys, we don't want to end up as turtle soup. And you be careful too Jay." Leo pointed out. "Sure you can fly, but don't get to reckless." "Yes o fearless leader." Jay said in a not so serious tone. The mouser began to climb up a wall. "Resoureful little critter." "What do we do now?" Raph asked. "Like Master Splinter says, a ninja is always prepared." Leo said as he took out a band with spikes. "I thought that was the boy scouts." Mikey protested. Jay flew up and waited for his bros.
April went into the elevator and it went down.
"Next time let's leave the wall crawling to the dude in blue and red tights." Mikey said. "You read way too many comic books." Leo said. "Hey, Spidey's a cool guy." said Jay. "Well why don't you use your powers for helping others up there?" asked Mikey. "I decide what I do with them Mikey, besides, I bet we'll find a way to help others." replied Jay. "Another thing, I don't know what Splinter would say to me doing that. I might be doing good, but if I did become a hero, someone may try and track me down and they would find out about you guys. And I don't want to put you all at risk." Jay also said. The Mouser went into a pipe and the boys followed them. "What if that thing eats through more metal or rock?" Jay asked. "I shut down its jaw funtion, that thing couldn't chew its way through a gumball. But the Mouser WAS eating, through pipes. "But, I'm sure I shut down that function." Don said. "Looks like Don's finally lost his techno mojo." Mikey said. "It must have a security override function. Let's follow it." "Uh-oh" Don said. "What is it?" Leo asked. "If I'm not mistaken, that's a serious watermane hanging right over our heads." Don said. "So?" asked Raph. "So, our little mouser friend just ate through the pipe support." The water began leaking. "INCOMING!" The water pushed away the five mutants. They started to fall in the last room they were in.
While they were falling, Don used his staff to hang on a pipe. The turtles grabbed onto him going down. Jay used his powers to latch onto a wall. "Ow, watch where you point those spikes Mike." Raph said. Mikey. "Keep your shell on Raph, I've got an idea." "Mikey, wait what are you." Leo said. But Mikey lept out at the wall and his brothers followed him. Jay recovered and started to fly again. "Are you guys all right?" Jay asked "Puth, just peachy." Raph said spitting out water.
At Stocktronics, April was still going down the elevator, and it stopped. "Finally." April said. She walked and saw a bunch of Mousers being made, thousands maybe. "I don't care how bad the city's rodent problem is, this is serious overkill." April said to herself out loud. While she was walking, a motion detector sensed her.
In the Sewers, the brothers made it past the water drain. "When I get my hands on that metal menace I'm gonna grind him into little bot burgers." Raph said angrily. "Easy Raph, we still have to keep him in one piece." Don said as they put the armbands away. "How are we going to find him?" Mikey asked. "I think he left us some clues." Leo said pointing out the broken pipes.
At Stocktronics, April was hacking a computer. "Rat problem my foot, what are you really up to Stockman?" April said to herself. "Now Ms. O'neil, that would be telling." Stockman said. "Suffice to say, my army of Mousers will make me a very rich and powerful man." he finished. "But aren't you already a very rich and powerful man?" April asked. "Ahh April, so brilliant, yet so naïve. I will truly miss working with you." Stockman said. "You mean I'm fired?" April asked suddenly. "In a manner of speaking." He said pressing a button on a control pad he had behind his back. A claw reached out and grabbed April and set her down with the mousers. "I'm afraid I can't let you live April. You've seen far too much and, well, let's just say I have trust issues." Baxter said working at a computer terminal and got the mousers to attack April.
In the Sewers, the five bros found their way to a subway tunnel and found the mouser. "There he is" exclaimed Jay. There was a subway train coming and when it passed, the mouser was gone. "Whoa, Robo Houdini." exclaimed Mikey. "Wrong, Robo hitch-hiker." Leo said as he saw the mouser on the back of the train. "Two can play at that game." Raph said as he jumped onto another train. Leo, Mikey, and Don jumped on too, but Jay flew to keep up with them. "Let's see that robot outsmart us" said Jay. "Incoming train!" the turtles warned their brother. Jay looking and instantly turned intangible and invisible. "Thanks for the warning guys." said Jay. The mouser got off and ate another way out, but the four turtles and their mutant stepbrother followed.
At Stocktronics, the mousers were proceeding to attack April. April got a fire extinguisher. "I know how to use this, so don't make me." April sprayed some water vapor, but the mouser was unaffected. She then used the container to hit the mousers head, and it broke. The other mousers came and attacked her. One bit off the bottom of the fire extinguisher. It releashed fog and April made her getaway. "You can run Ms. O'neil, but you can't hide from my mousers." April made her way into the sewers and continued running.
In another part of the sewer, the brothers were following the mouser. They saw it when they reached the end of the tunnel. Mikey spotted another mouser. "Hey who invited him?" he asked. "I've got it." Raph replied when he threw a shuriken. "Good shot bro." Jay said. But the Mouser got up, and more of them were appearing. "These drones are tougher than the last batch." said Leo. "And there's a whole lot more of 'em too." finished Raph.
The five brothers got out their weapons and started to fight. Mikey fought while spinning his nunchuks and kicking. Don used his Bo Staff and got some down. Raph used his Sai and broke a bunch. Leo sliced they're heads off with his blades. Jay used his sword and also used some powers. A mouser tried jumping on Don, but Jay blasted it. "Chaos energy ball." He shouted out as red energy blasted the mouser. "Thanks Jay I, watch out!" A mouser tried getting Jay, but Don got it back. "We even?" Jay asked. "Even" replied Don. The fighting continued. "These mousers are incredible," Exclaimed Donny. "The servo mechanics, the metal, the circuitry." Geez Don why don't you just marry one already?" Raph asked. "And what's it with you saying chaos when you use your powers?" asked Raph. "I like the Sonic video games a lot." said Jay. "Remember, we need keep one" Don started to say as Jay blasted the last one, "in tact." Don said in disbelief.
Meanwhile, April was cornered by some mousers that Stockman sent after her. She was in front of a wooden gate that kept her from going any further. She was so scared. "AAAAAHHHH!" Just as she was about to go, The five mutants came and used their weapons to destroy the mousers. One was left, but Jay blasted that one, saving April. "Oh thank you, thank you so much you saved my." April said but look at her saviors. "Hey, how ya doing?" Mikey asked. April fainted. Mikey picked her up. "So, can I keep her?" he asked. "No Mikey, but we should get her to safety." Jay said. They all agreed, so they went back to their new home.